The opening credits in this episode start 17 minutes into the episode.
The glyphs in this episode spell "Saved".
At the end of the episode, we see "What's that noise?" on the cover of a book. Which is an element of the next episode.
"The Observer" can be seen walking at the entrance of Harvard University while Olivia picks up Peter and Walter Bishop.
Mitchell Loeb's car has the number plate 1R2D21.